20023200032197 has 2 divisors, whose sum is σ = 20023200032198. Its totient is φ = 20023200032196.

The previous prime is 20023200032053. The next prime is 20023200032233. The reversal of 20023200032197 is 79123000232002.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11671556645956 + 8351643386241 = 3416366^2 + 2889921^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20023200032197 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20023200032497) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10011600016098 + 10011600016099.

It is an arithmetic number, because the mean of its divisors is an integer number (10011600016099).

Almost surely, 2^{20023200032197} is an apocalyptic number.

It is an amenable number.

20023200032197 is a deficient number, since it is larger than the sum of its proper divisors (1).

20023200032197 is an equidigital number, since it uses as much as digits as its factorization.

20023200032197 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9072, while the sum is 31.

Adding to 20023200032197 its reverse (79123000232002), we get a palindrome (99146200264199).

The spelling of 20023200032197 in words is "twenty trillion, twenty-three billion, two hundred million, thirty-two thousand, one hundred ninety-seven".